Module: Procedo::Formula::Language

Includes:
Nodes, Treetop::Runtime
Included in:
LanguageParser, Parser
Defined in:
lib/procedo/formula/language.rb

Defined Under Namespace

Modules: Additive0, Additive1, Comparative0, Comparative1, Comparative2, Comparative3, Comparative4, Comparative5, Conditive0, Conjonctive0, Conjonctive1, Conjonctive2, Conjonctive3, Disjunctive0, EnvironmentVariable0, EnvironmentVariable1, FunctionCall0, FunctionCall1, FunctionCall2, FunctionName0, FunctionName1, Indicative0, Indicative1, Indicator0, Indicator1, Multitive0, Multitive1, NegatedTest0, Negative0, Numeric0, Numeric1, Numeric2, Presence0, Presence1, Primary0, Reading0, Reading1, Reading2, Reading3, Symbol0, Symbol1, Test0, Unit0, Unit1, Variable0, Variable1

Instance Method Summary collapse

Instance Method Details

#_nt_additiveObject


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# File 'lib/procedo/formula/language.rb', line 328

def _nt_additive
  start_index = index
  if node_cache[:additive].has_key?(index)
    cached = node_cache[:additive][index]
    if cached
      node_cache[:additive][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0 = index
  i1, s1 = index, []
  r2 = _nt_multitive
  s1 << r2
  if r2
    r4 = _nt_space
    if r4
      r3 = r4
    else
      r3 = instantiate_node(SyntaxNode,input, index...index)
    end
    s1 << r3
    if r3
      if (match_len = has_terminal?("+", false, index))
        r5 = true
        @index += match_len
      else
        terminal_parse_failure('"+"')
        r5 = nil
      end
      s1 << r5
      if r5
        r7 = _nt_space
        if r7
          r6 = r7
        else
          r6 = instantiate_node(SyntaxNode,input, index...index)
        end
        s1 << r6
        if r6
          r8 = _nt_additive
          s1 << r8
        end
      end
    end
  end
  if s1.last
    r1 = instantiate_node(Addition,input, i1...index, s1)
    r1.extend(Additive0)
  else
    @index = i1
    r1 = nil
  end
  if r1
    r1 = SyntaxNode.new(input, (index-1)...index) if r1 == true
    r0 = r1
  else
    i9, s9 = index, []
    r10 = _nt_multitive
    s9 << r10
    if r10
      r12 = _nt_space
      if r12
        r11 = r12
      else
        r11 = instantiate_node(SyntaxNode,input, index...index)
      end
      s9 << r11
      if r11
        if (match_len = has_terminal?("-", false, index))
          r13 = true
          @index += match_len
        else
          terminal_parse_failure('"-"')
          r13 = nil
        end
        s9 << r13
        if r13
          r15 = _nt_space
          if r15
            r14 = r15
          else
            r14 = instantiate_node(SyntaxNode,input, index...index)
          end
          s9 << r14
          if r14
            r16 = _nt_additive
            s9 << r16
          end
        end
      end
    end
    if s9.last
      r9 = instantiate_node(Substraction,input, i9...index, s9)
      r9.extend(Additive1)
    else
      @index = i9
      r9 = nil
    end
    if r9
      r9 = SyntaxNode.new(input, (index-1)...index) if r9 == true
      r0 = r9
    else
      r17 = _nt_multitive
      if r17
        r17 = SyntaxNode.new(input, (index-1)...index) if r17 == true
        r0 = r17
      else
        @index = i0
        r0 = nil
      end
    end
  end

  node_cache[:additive][start_index] = r0

  r0
end

#_nt_argumentObject


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# File 'lib/procedo/formula/language.rb', line 546

def _nt_argument
  start_index = index
  if node_cache[:argument].has_key?(index)
    cached = node_cache[:argument][index]
    if cached
      node_cache[:argument][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0 = index
  r1 = _nt_numeric
  if r1
    r1 = SyntaxNode.new(input, (index-1)...index) if r1 == true
    r0 = r1
  else
    r2 = _nt_symbol
    if r2
      r2 = SyntaxNode.new(input, (index-1)...index) if r2 == true
      r0 = r2
    else
      r3 = _nt_reading
      if r3
        r3 = SyntaxNode.new(input, (index-1)...index) if r3 == true
        r0 = r3
      else
        r4 = _nt_object
        if r4
          r4 = SyntaxNode.new(input, (index-1)...index) if r4 == true
          r0 = r4
        else
          r5 = _nt_variable
          if r5
            r5 = SyntaxNode.new(input, (index-1)...index) if r5 == true
            r0 = r5
          else
            r6 = _nt_expression
            if r6
              r6 = SyntaxNode.new(input, (index-1)...index) if r6 == true
              r0 = r6
            else
              @index = i0
              r0 = nil
            end
          end
        end
      end
    end
  end

  node_cache[:argument][start_index] = r0

  r0
end

#_nt_boolean_expressionObject


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# File 'lib/procedo/formula/language.rb', line 1836

def _nt_boolean_expression
  start_index = index
  if node_cache[:boolean_expression].has_key?(index)
    cached = node_cache[:boolean_expression][index]
    if cached
      node_cache[:boolean_expression][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0 = index
  r1 = _nt_disjunctive
  if r1
    r1 = SyntaxNode.new(input, (index-1)...index) if r1 == true
    r0 = r1
  else
    r2 = _nt_test
    if r2
      r2 = SyntaxNode.new(input, (index-1)...index) if r2 == true
      r0 = r2
    else
      @index = i0
      r0 = nil
    end
  end

  node_cache[:boolean_expression][start_index] = r0

  r0
end

#_nt_comparativeObject


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# File 'lib/procedo/formula/language.rb', line 2371

def _nt_comparative
  start_index = index
  if node_cache[:comparative].has_key?(index)
    cached = node_cache[:comparative][index]
    if cached
      node_cache[:comparative][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0 = index
  i1, s1 = index, []
  r2 = _nt_primary
  s1 << r2
  if r2
    r4 = _nt_space
    if r4
      r3 = r4
    else
      r3 = instantiate_node(SyntaxNode,input, index...index)
    end
    s1 << r3
    if r3
      if (match_len = has_terminal?(">", false, index))
        r5 = true
        @index += match_len
      else
        terminal_parse_failure('">"')
        r5 = nil
      end
      s1 << r5
      if r5
        r7 = _nt_space
        if r7
          r6 = r7
        else
          r6 = instantiate_node(SyntaxNode,input, index...index)
        end
        s1 << r6
        if r6
          r8 = _nt_primary
          s1 << r8
        end
      end
    end
  end
  if s1.last
    r1 = instantiate_node(StrictSuperiorityComparison,input, i1...index, s1)
    r1.extend(Comparative0)
  else
    @index = i1
    r1 = nil
  end
  if r1
    r1 = SyntaxNode.new(input, (index-1)...index) if r1 == true
    r0 = r1
  else
    i9, s9 = index, []
    r10 = _nt_primary
    s9 << r10
    if r10
      r12 = _nt_space
      if r12
        r11 = r12
      else
        r11 = instantiate_node(SyntaxNode,input, index...index)
      end
      s9 << r11
      if r11
        if (match_len = has_terminal?("<", false, index))
          r13 = true
          @index += match_len
        else
          terminal_parse_failure('"<"')
          r13 = nil
        end
        s9 << r13
        if r13
          r15 = _nt_space
          if r15
            r14 = r15
          else
            r14 = instantiate_node(SyntaxNode,input, index...index)
          end
          s9 << r14
          if r14
            r16 = _nt_primary
            s9 << r16
          end
        end
      end
    end
    if s9.last
      r9 = instantiate_node(StrictInferiortyComparison,input, i9...index, s9)
      r9.extend(Comparative1)
    else
      @index = i9
      r9 = nil
    end
    if r9
      r9 = SyntaxNode.new(input, (index-1)...index) if r9 == true
      r0 = r9
    else
      i17, s17 = index, []
      r18 = _nt_primary
      s17 << r18
      if r18
        r20 = _nt_space
        if r20
          r19 = r20
        else
          r19 = instantiate_node(SyntaxNode,input, index...index)
        end
        s17 << r19
        if r19
          if (match_len = has_terminal?(">=", false, index))
            r21 = instantiate_node(SyntaxNode,input, index...(index + match_len))
            @index += match_len
          else
            terminal_parse_failure('">="')
            r21 = nil
          end
          s17 << r21
          if r21
            r23 = _nt_space
            if r23
              r22 = r23
            else
              r22 = instantiate_node(SyntaxNode,input, index...index)
            end
            s17 << r22
            if r22
              r24 = _nt_primary
              s17 << r24
            end
          end
        end
      end
      if s17.last
        r17 = instantiate_node(SuperiorityComparison,input, i17...index, s17)
        r17.extend(Comparative2)
      else
        @index = i17
        r17 = nil
      end
      if r17
        r17 = SyntaxNode.new(input, (index-1)...index) if r17 == true
        r0 = r17
      else
        i25, s25 = index, []
        r26 = _nt_primary
        s25 << r26
        if r26
          r28 = _nt_space
          if r28
            r27 = r28
          else
            r27 = instantiate_node(SyntaxNode,input, index...index)
          end
          s25 << r27
          if r27
            if (match_len = has_terminal?("<=", false, index))
              r29 = instantiate_node(SyntaxNode,input, index...(index + match_len))
              @index += match_len
            else
              terminal_parse_failure('"<="')
              r29 = nil
            end
            s25 << r29
            if r29
              r31 = _nt_space
              if r31
                r30 = r31
              else
                r30 = instantiate_node(SyntaxNode,input, index...index)
              end
              s25 << r30
              if r30
                r32 = _nt_primary
                s25 << r32
              end
            end
          end
        end
        if s25.last
          r25 = instantiate_node(InferiorityComparison,input, i25...index, s25)
          r25.extend(Comparative3)
        else
          @index = i25
          r25 = nil
        end
        if r25
          r25 = SyntaxNode.new(input, (index-1)...index) if r25 == true
          r0 = r25
        else
          i33, s33 = index, []
          r34 = _nt_primary
          s33 << r34
          if r34
            r36 = _nt_space
            if r36
              r35 = r36
            else
              r35 = instantiate_node(SyntaxNode,input, index...index)
            end
            s33 << r35
            if r35
              if (match_len = has_terminal?("==", false, index))
                r37 = instantiate_node(SyntaxNode,input, index...(index + match_len))
                @index += match_len
              else
                terminal_parse_failure('"=="')
                r37 = nil
              end
              s33 << r37
              if r37
                r39 = _nt_space
                if r39
                  r38 = r39
                else
                  r38 = instantiate_node(SyntaxNode,input, index...index)
                end
                s33 << r38
                if r38
                  r40 = _nt_primary
                  s33 << r40
                end
              end
            end
          end
          if s33.last
            r33 = instantiate_node(EqualityComparison,input, i33...index, s33)
            r33.extend(Comparative4)
          else
            @index = i33
            r33 = nil
          end
          if r33
            r33 = SyntaxNode.new(input, (index-1)...index) if r33 == true
            r0 = r33
          else
            i41, s41 = index, []
            r42 = _nt_primary
            s41 << r42
            if r42
              r44 = _nt_space
              if r44
                r43 = r44
              else
                r43 = instantiate_node(SyntaxNode,input, index...index)
              end
              s41 << r43
              if r43
                if (match_len = has_terminal?("!=", false, index))
                  r45 = instantiate_node(SyntaxNode,input, index...(index + match_len))
                  @index += match_len
                else
                  terminal_parse_failure('"!="')
                  r45 = nil
                end
                s41 << r45
                if r45
                  r47 = _nt_space
                  if r47
                    r46 = r47
                  else
                    r46 = instantiate_node(SyntaxNode,input, index...index)
                  end
                  s41 << r46
                  if r46
                    r48 = _nt_primary
                    s41 << r48
                  end
                end
              end
            end
            if s41.last
              r41 = instantiate_node(DifferenceComparison,input, i41...index, s41)
              r41.extend(Comparative5)
            else
              @index = i41
              r41 = nil
            end
            if r41
              r41 = SyntaxNode.new(input, (index-1)...index) if r41 == true
              r0 = r41
            else
              @index = i0
              r0 = nil
            end
          end
        end
      end
    end
  end

  node_cache[:comparative][start_index] = r0

  r0
end

#_nt_conditiveObject


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# File 'lib/procedo/formula/language.rb', line 83

def _nt_conditive
  start_index = index
  if node_cache[:conditive].has_key?(index)
    cached = node_cache[:conditive][index]
    if cached
      node_cache[:conditive][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0, s0 = index, []
  r1 = _nt_boolean_expression
  s0 << r1
  if r1
    r2 = _nt_space
    s0 << r2
    if r2
      if (match_len = has_terminal?("?", false, index))
        r3 = true
        @index += match_len
      else
        terminal_parse_failure('"?"')
        r3 = nil
      end
      s0 << r3
      if r3
        r4 = _nt_space
        s0 << r4
        if r4
          r5 = _nt_argument
          s0 << r5
          if r5
            r6 = _nt_space
            s0 << r6
            if r6
              if (match_len = has_terminal?(":", false, index))
                r7 = true
                @index += match_len
              else
                terminal_parse_failure('":"')
                r7 = nil
              end
              s0 << r7
              if r7
                r8 = _nt_space
                s0 << r8
                if r8
                  i9 = index
                  r10 = _nt_argument
                  if r10
                    r10 = SyntaxNode.new(input, (index-1)...index) if r10 == true
                    r9 = r10
                  else
                    r11 = _nt_conditive
                    if r11
                      r11 = SyntaxNode.new(input, (index-1)...index) if r11 == true
                      r9 = r11
                    else
                      @index = i9
                      r9 = nil
                    end
                  end
                  s0 << r9
                end
              end
            end
          end
        end
      end
    end
  end
  if s0.last
    r0 = instantiate_node(Condition,input, i0...index, s0)
    r0.extend(Conditive0)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:conditive][start_index] = r0

  r0
end

#_nt_conjonctiveObject


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# File 'lib/procedo/formula/language.rb', line 1924

def _nt_conjonctive
  start_index = index
  if node_cache[:conjonctive].has_key?(index)
    cached = node_cache[:conjonctive][index]
    if cached
      node_cache[:conjonctive][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0 = index
  i1, s1 = index, []
  r2 = _nt_test
  s1 << r2
  if r2
    r4 = _nt_space
    if r4
      r3 = r4
    else
      r3 = instantiate_node(SyntaxNode,input, index...index)
    end
    s1 << r3
    if r3
      if (match_len = has_terminal?("&", false, index))
        r5 = true
        @index += match_len
      else
        terminal_parse_failure('"&"')
        r5 = nil
      end
      s1 << r5
      if r5
        r7 = _nt_space
        if r7
          r6 = r7
        else
          r6 = instantiate_node(SyntaxNode,input, index...index)
        end
        s1 << r6
        if r6
          r8 = _nt_conjonctive
          s1 << r8
        end
      end
    end
  end
  if s1.last
    r1 = instantiate_node(Conjunction,input, i1...index, s1)
    r1.extend(Conjonctive0)
  else
    @index = i1
    r1 = nil
  end
  if r1
    r1 = SyntaxNode.new(input, (index-1)...index) if r1 == true
    r0 = r1
  else
    i9, s9 = index, []
    r10 = _nt_test
    s9 << r10
    if r10
      r11 = _nt_space
      s9 << r11
      if r11
        if (match_len = has_terminal?("and", false, index))
          r12 = instantiate_node(SyntaxNode,input, index...(index + match_len))
          @index += match_len
        else
          terminal_parse_failure('"and"')
          r12 = nil
        end
        s9 << r12
        if r12
          r13 = _nt_space
          s9 << r13
          if r13
            r14 = _nt_conjonctive
            s9 << r14
          end
        end
      end
    end
    if s9.last
      r9 = instantiate_node(Conjunction,input, i9...index, s9)
      r9.extend(Conjonctive1)
    else
      @index = i9
      r9 = nil
    end
    if r9
      r9 = SyntaxNode.new(input, (index-1)...index) if r9 == true
      r0 = r9
    else
      i15, s15 = index, []
      r16 = _nt_test
      s15 << r16
      if r16
        r18 = _nt_space
        if r18
          r17 = r18
        else
          r17 = instantiate_node(SyntaxNode,input, index...index)
        end
        s15 << r17
        if r17
          if (match_len = has_terminal?("||", false, index))
            r19 = instantiate_node(SyntaxNode,input, index...(index + match_len))
            @index += match_len
          else
            terminal_parse_failure('"||"')
            r19 = nil
          end
          s15 << r19
          if r19
            r21 = _nt_space
            if r21
              r20 = r21
            else
              r20 = instantiate_node(SyntaxNode,input, index...index)
            end
            s15 << r20
            if r20
              r22 = _nt_conjonctive
              s15 << r22
            end
          end
        end
      end
      if s15.last
        r15 = instantiate_node(ExclusiveDisjunction,input, i15...index, s15)
        r15.extend(Conjonctive2)
      else
        @index = i15
        r15 = nil
      end
      if r15
        r15 = SyntaxNode.new(input, (index-1)...index) if r15 == true
        r0 = r15
      else
        i23, s23 = index, []
        r24 = _nt_test
        s23 << r24
        if r24
          r25 = _nt_space
          s23 << r25
          if r25
            if (match_len = has_terminal?("or", false, index))
              r26 = instantiate_node(SyntaxNode,input, index...(index + match_len))
              @index += match_len
            else
              terminal_parse_failure('"or"')
              r26 = nil
            end
            s23 << r26
            if r26
              r27 = _nt_space
              s23 << r27
              if r27
                r28 = _nt_conjonctive
                s23 << r28
              end
            end
          end
        end
        if s23.last
          r23 = instantiate_node(ExclusiveDisjunction,input, i23...index, s23)
          r23.extend(Conjonctive3)
        else
          @index = i23
          r23 = nil
        end
        if r23
          r23 = SyntaxNode.new(input, (index-1)...index) if r23 == true
          r0 = r23
        else
          r29 = _nt_test
          if r29
            r29 = SyntaxNode.new(input, (index-1)...index) if r29 == true
            r0 = r29
          else
            @index = i0
            r0 = nil
          end
        end
      end
    end
  end

  node_cache[:conjonctive][start_index] = r0

  r0
end

#_nt_disjunctiveObject


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# File 'lib/procedo/formula/language.rb', line 2128

def _nt_disjunctive
  start_index = index
  if node_cache[:disjunctive].has_key?(index)
    cached = node_cache[:disjunctive][index]
    if cached
      node_cache[:disjunctive][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0 = index
  i1, s1 = index, []
  r2 = _nt_conjonctive
  s1 << r2
  if r2
    r4 = _nt_space
    if r4
      r3 = r4
    else
      r3 = instantiate_node(SyntaxNode,input, index...index)
    end
    s1 << r3
    if r3
      if (match_len = has_terminal?("|", false, index))
        r5 = true
        @index += match_len
      else
        terminal_parse_failure('"|"')
        r5 = nil
      end
      s1 << r5
      if r5
        r7 = _nt_space
        if r7
          r6 = r7
        else
          r6 = instantiate_node(SyntaxNode,input, index...index)
        end
        s1 << r6
        if r6
          r8 = _nt_disjunctive
          s1 << r8
        end
      end
    end
  end
  if s1.last
    r1 = instantiate_node(Disjunction,input, i1...index, s1)
    r1.extend(Disjunctive0)
  else
    @index = i1
    r1 = nil
  end
  if r1
    r1 = SyntaxNode.new(input, (index-1)...index) if r1 == true
    r0 = r1
  else
    r9 = _nt_conjonctive
    if r9
      r9 = SyntaxNode.new(input, (index-1)...index) if r9 == true
      r0 = r9
    else
      @index = i0
      r0 = nil
    end
  end

  node_cache[:disjunctive][start_index] = r0

  r0
end

#_nt_environment_variableObject


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# File 'lib/procedo/formula/language.rb', line 836

def _nt_environment_variable
  start_index = index
  if node_cache[:environment_variable].has_key?(index)
    cached = node_cache[:environment_variable][index]
    if cached
      node_cache[:environment_variable][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0, s0 = index, []
  if has_terminal?(@regexps[gr = '\A[A-Z]'] ||= Regexp.new(gr), :regexp, index)
    r1 = true
    @index += 1
  else
    terminal_parse_failure('[A-Z]')
    r1 = nil
  end
  s0 << r1
  if r1
    s2, i2 = [], index
    loop do
      if has_terminal?(@regexps[gr = '\A[A-Z0-9]'] ||= Regexp.new(gr), :regexp, index)
        r3 = true
        @index += 1
      else
        terminal_parse_failure('[A-Z0-9]')
        r3 = nil
      end
      if r3
        s2 << r3
      else
        break
      end
    end
    r2 = instantiate_node(SyntaxNode,input, i2...index, s2)
    s0 << r2
    if r2
      s4, i4 = [], index
      loop do
        i5, s5 = index, []
        if (match_len = has_terminal?("_", false, index))
          r6 = true
          @index += match_len
        else
          terminal_parse_failure('"_"')
          r6 = nil
        end
        s5 << r6
        if r6
          s7, i7 = [], index
          loop do
            if has_terminal?(@regexps[gr = '\A[A-Z0-9]'] ||= Regexp.new(gr), :regexp, index)
              r8 = true
              @index += 1
            else
              terminal_parse_failure('[A-Z0-9]')
              r8 = nil
            end
            if r8
              s7 << r8
            else
              break
            end
          end
          if s7.empty?
            @index = i7
            r7 = nil
          else
            r7 = instantiate_node(SyntaxNode,input, i7...index, s7)
          end
          s5 << r7
        end
        if s5.last
          r5 = instantiate_node(SyntaxNode,input, i5...index, s5)
          r5.extend(EnvironmentVariable0)
        else
          @index = i5
          r5 = nil
        end
        if r5
          s4 << r5
        else
          break
        end
      end
      r4 = instantiate_node(SyntaxNode,input, i4...index, s4)
      s0 << r4
    end
  end
  if s0.last
    r0 = instantiate_node(EnvironmentVariable,input, i0...index, s0)
    r0.extend(EnvironmentVariable1)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:environment_variable][start_index] = r0

  r0
end

#_nt_expressionObject


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# File 'lib/procedo/formula/language.rb', line 15

def _nt_expression
  start_index = index
  if node_cache[:expression].has_key?(index)
    cached = node_cache[:expression][index]
    if cached
      node_cache[:expression][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0 = index
  r1 = _nt_conditive
  if r1
    r1 = SyntaxNode.new(input, (index-1)...index) if r1 == true
    r0 = r1
  else
    r2 = _nt_additive
    if r2
      r2 = SyntaxNode.new(input, (index-1)...index) if r2 == true
      r0 = r2
    else
      r3 = _nt_primary
      if r3
        r3 = SyntaxNode.new(input, (index-1)...index) if r3 == true
        r0 = r3
      else
        @index = i0
        r0 = nil
      end
    end
  end

  node_cache[:expression][start_index] = r0

  r0
end

#_nt_function_callObject


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# File 'lib/procedo/formula/language.rb', line 1555

def _nt_function_call
  start_index = index
  if node_cache[:function_call].has_key?(index)
    cached = node_cache[:function_call][index]
    if cached
      node_cache[:function_call][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0, s0 = index, []
  r1 = _nt_function_name
  s0 << r1
  if r1
    if (match_len = has_terminal?("(", false, index))
      r2 = true
      @index += match_len
    else
      terminal_parse_failure('"("')
      r2 = nil
    end
    s0 << r2
    if r2
      r4 = _nt_space
      if r4
        r3 = r4
      else
        r3 = instantiate_node(SyntaxNode,input, index...index)
      end
      s0 << r3
      if r3
        i6, s6 = index, []
        r7 = _nt_argument
        s6 << r7
        if r7
          s8, i8 = [], index
          loop do
            i9, s9 = index, []
            r11 = _nt_space
            if r11
              r10 = r11
            else
              r10 = instantiate_node(SyntaxNode,input, index...index)
            end
            s9 << r10
            if r10
              if (match_len = has_terminal?(",", false, index))
                r12 = true
                @index += match_len
              else
                terminal_parse_failure('","')
                r12 = nil
              end
              s9 << r12
              if r12
                r14 = _nt_space
                if r14
                  r13 = r14
                else
                  r13 = instantiate_node(SyntaxNode,input, index...index)
                end
                s9 << r13
                if r13
                  r15 = _nt_argument
                  s9 << r15
                end
              end
            end
            if s9.last
              r9 = instantiate_node(SyntaxNode,input, i9...index, s9)
              r9.extend(FunctionCall0)
            else
              @index = i9
              r9 = nil
            end
            if r9
              s8 << r9
            else
              break
            end
          end
          r8 = instantiate_node(SyntaxNode,input, i8...index, s8)
          s6 << r8
        end
        if s6.last
          r6 = instantiate_node(SyntaxNode,input, i6...index, s6)
          r6.extend(FunctionCall1)
        else
          @index = i6
          r6 = nil
        end
        if r6
          r5 = r6
        else
          r5 = instantiate_node(SyntaxNode,input, index...index)
        end
        s0 << r5
        if r5
          r17 = _nt_space
          if r17
            r16 = r17
          else
            r16 = instantiate_node(SyntaxNode,input, index...index)
          end
          s0 << r16
          if r16
            if (match_len = has_terminal?(")", false, index))
              r18 = true
              @index += match_len
            else
              terminal_parse_failure('")"')
              r18 = nil
            end
            s0 << r18
          end
        end
      end
    end
  end
  if s0.last
    r0 = instantiate_node(FunctionCall,input, i0...index, s0)
    r0.extend(FunctionCall2)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:function_call][start_index] = r0

  r0
end

#_nt_function_nameObject


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# File 'lib/procedo/formula/language.rb', line 1694

def _nt_function_name
  start_index = index
  if node_cache[:function_name].has_key?(index)
    cached = node_cache[:function_name][index]
    if cached
      node_cache[:function_name][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0, s0 = index, []
  if has_terminal?(@regexps[gr = '\A[a-z]'] ||= Regexp.new(gr), :regexp, index)
    r1 = true
    @index += 1
  else
    terminal_parse_failure('[a-z]')
    r1 = nil
  end
  s0 << r1
  if r1
    s2, i2 = [], index
    loop do
      if has_terminal?(@regexps[gr = '\A[a-z0-9]'] ||= Regexp.new(gr), :regexp, index)
        r3 = true
        @index += 1
      else
        terminal_parse_failure('[a-z0-9]')
        r3 = nil
      end
      if r3
        s2 << r3
      else
        break
      end
    end
    r2 = instantiate_node(SyntaxNode,input, i2...index, s2)
    s0 << r2
    if r2
      s4, i4 = [], index
      loop do
        i5, s5 = index, []
        if (match_len = has_terminal?("_", false, index))
          r6 = true
          @index += match_len
        else
          terminal_parse_failure('"_"')
          r6 = nil
        end
        s5 << r6
        if r6
          s7, i7 = [], index
          loop do
            if has_terminal?(@regexps[gr = '\A[a-z0-9]'] ||= Regexp.new(gr), :regexp, index)
              r8 = true
              @index += 1
            else
              terminal_parse_failure('[a-z0-9]')
              r8 = nil
            end
            if r8
              s7 << r8
            else
              break
            end
          end
          if s7.empty?
            @index = i7
            r7 = nil
          else
            r7 = instantiate_node(SyntaxNode,input, i7...index, s7)
          end
          s5 << r7
        end
        if s5.last
          r5 = instantiate_node(SyntaxNode,input, i5...index, s5)
          r5.extend(FunctionName0)
        else
          @index = i5
          r5 = nil
        end
        if r5
          s4 << r5
        else
          break
        end
      end
      r4 = instantiate_node(SyntaxNode,input, i4...index, s4)
      s0 << r4
    end
  end
  if s0.last
    r0 = instantiate_node(FunctionName,input, i0...index, s0)
    r0.extend(FunctionName1)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:function_name][start_index] = r0

  r0
end

#_nt_indicativeObject


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# File 'lib/procedo/formula/language.rb', line 2779

def _nt_indicative
  start_index = index
  if node_cache[:indicative].has_key?(index)
    cached = node_cache[:indicative][index]
    if cached
      node_cache[:indicative][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0 = index
  i1, s1 = index, []
  r2 = _nt_object
  s1 << r2
  if r2
    if (match_len = has_terminal?(".", false, index))
      r3 = true
      @index += match_len
    else
      terminal_parse_failure('"."')
      r3 = nil
    end
    s1 << r3
    if r3
      r4 = _nt_indicator
      s1 << r4
      if r4
        if (match_len = has_terminal?("?", false, index))
          r5 = true
          @index += match_len
        else
          terminal_parse_failure('"?"')
          r5 = nil
        end
        s1 << r5
      end
    end
  end
  if s1.last
    r1 = instantiate_node(IndicatorPresenceTest,input, i1...index, s1)
    r1.extend(Indicative0)
  else
    @index = i1
    r1 = nil
  end
  if r1
    r1 = SyntaxNode.new(input, (index-1)...index) if r1 == true
    r0 = r1
  else
    i6, s6 = index, []
    r7 = _nt_object
    s6 << r7
    if r7
      if (match_len = has_terminal?("..", false, index))
        r8 = instantiate_node(SyntaxNode,input, index...(index + match_len))
        @index += match_len
      else
        terminal_parse_failure('".."')
        r8 = nil
      end
      s6 << r8
      if r8
        r9 = _nt_indicator
        s6 << r9
        if r9
          if (match_len = has_terminal?("?", false, index))
            r10 = true
            @index += match_len
          else
            terminal_parse_failure('"?"')
            r10 = nil
          end
          s6 << r10
        end
      end
    end
    if s6.last
      r6 = instantiate_node(IndividualIndicatorPresenceTest,input, i6...index, s6)
      r6.extend(Indicative1)
    else
      @index = i6
      r6 = nil
    end
    if r6
      r6 = SyntaxNode.new(input, (index-1)...index) if r6 == true
      r0 = r6
    else
      @index = i0
      r0 = nil
    end
  end

  node_cache[:indicative][start_index] = r0

  r0
end

#_nt_indicatorObject


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# File 'lib/procedo/formula/language.rb', line 1056

def _nt_indicator
  start_index = index
  if node_cache[:indicator].has_key?(index)
    cached = node_cache[:indicator][index]
    if cached
      node_cache[:indicator][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0, s0 = index, []
  if has_terminal?(@regexps[gr = '\A[a-z]'] ||= Regexp.new(gr), :regexp, index)
    r1 = true
    @index += 1
  else
    terminal_parse_failure('[a-z]')
    r1 = nil
  end
  s0 << r1
  if r1
    s2, i2 = [], index
    loop do
      if has_terminal?(@regexps[gr = '\A[a-z0-9]'] ||= Regexp.new(gr), :regexp, index)
        r3 = true
        @index += 1
      else
        terminal_parse_failure('[a-z0-9]')
        r3 = nil
      end
      if r3
        s2 << r3
      else
        break
      end
    end
    r2 = instantiate_node(SyntaxNode,input, i2...index, s2)
    s0 << r2
    if r2
      s4, i4 = [], index
      loop do
        i5, s5 = index, []
        if (match_len = has_terminal?("_", false, index))
          r6 = true
          @index += match_len
        else
          terminal_parse_failure('"_"')
          r6 = nil
        end
        s5 << r6
        if r6
          s7, i7 = [], index
          loop do
            if has_terminal?(@regexps[gr = '\A[a-z0-9]'] ||= Regexp.new(gr), :regexp, index)
              r8 = true
              @index += 1
            else
              terminal_parse_failure('[a-z0-9]')
              r8 = nil
            end
            if r8
              s7 << r8
            else
              break
            end
          end
          if s7.empty?
            @index = i7
            r7 = nil
          else
            r7 = instantiate_node(SyntaxNode,input, i7...index, s7)
          end
          s5 << r7
        end
        if s5.last
          r5 = instantiate_node(SyntaxNode,input, i5...index, s5)
          r5.extend(Indicator0)
        else
          @index = i5
          r5 = nil
        end
        if r5
          s4 << r5
        else
          break
        end
      end
      r4 = instantiate_node(SyntaxNode,input, i4...index, s4)
      s0 << r4
    end
  end
  if s0.last
    r0 = instantiate_node(Indicator,input, i0...index, s0)
    r0.extend(Indicator1)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:indicator][start_index] = r0

  r0
end

#_nt_multitiveObject


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# File 'lib/procedo/formula/language.rb', line 188

def _nt_multitive
  start_index = index
  if node_cache[:multitive].has_key?(index)
    cached = node_cache[:multitive][index]
    if cached
      node_cache[:multitive][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0 = index
  i1, s1 = index, []
  r2 = _nt_primary
  s1 << r2
  if r2
    r4 = _nt_space
    if r4
      r3 = r4
    else
      r3 = instantiate_node(SyntaxNode,input, index...index)
    end
    s1 << r3
    if r3
      if (match_len = has_terminal?("*", false, index))
        r5 = true
        @index += match_len
      else
        terminal_parse_failure('"*"')
        r5 = nil
      end
      s1 << r5
      if r5
        r7 = _nt_space
        if r7
          r6 = r7
        else
          r6 = instantiate_node(SyntaxNode,input, index...index)
        end
        s1 << r6
        if r6
          r8 = _nt_multitive
          s1 << r8
        end
      end
    end
  end
  if s1.last
    r1 = instantiate_node(Multiplication,input, i1...index, s1)
    r1.extend(Multitive0)
  else
    @index = i1
    r1 = nil
  end
  if r1
    r1 = SyntaxNode.new(input, (index-1)...index) if r1 == true
    r0 = r1
  else
    i9, s9 = index, []
    r10 = _nt_primary
    s9 << r10
    if r10
      r12 = _nt_space
      if r12
        r11 = r12
      else
        r11 = instantiate_node(SyntaxNode,input, index...index)
      end
      s9 << r11
      if r11
        if (match_len = has_terminal?("/", false, index))
          r13 = true
          @index += match_len
        else
          terminal_parse_failure('"/"')
          r13 = nil
        end
        s9 << r13
        if r13
          r15 = _nt_space
          if r15
            r14 = r15
          else
            r14 = instantiate_node(SyntaxNode,input, index...index)
          end
          s9 << r14
          if r14
            r16 = _nt_multitive
            s9 << r16
          end
        end
      end
    end
    if s9.last
      r9 = instantiate_node(Division,input, i9...index, s9)
      r9.extend(Multitive1)
    else
      @index = i9
      r9 = nil
    end
    if r9
      r9 = SyntaxNode.new(input, (index-1)...index) if r9 == true
      r0 = r9
    else
      r17 = _nt_primary
      if r17
        r17 = SyntaxNode.new(input, (index-1)...index) if r17 == true
        r0 = r17
      else
        @index = i0
        r0 = nil
      end
    end
  end

  node_cache[:multitive][start_index] = r0

  r0
end

#_nt_negated_testObject


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# File 'lib/procedo/formula/language.rb', line 2927

def _nt_negated_test
  start_index = index
  if node_cache[:negated_test].has_key?(index)
    cached = node_cache[:negated_test][index]
    if cached
      node_cache[:negated_test][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0 = index
  r1 = _nt_indicative
  if r1
    r1 = SyntaxNode.new(input, (index-1)...index) if r1 == true
    r0 = r1
  else
    r2 = _nt_presence
    if r2
      r2 = SyntaxNode.new(input, (index-1)...index) if r2 == true
      r0 = r2
    else
      i3, s3 = index, []
      if (match_len = has_terminal?("(", false, index))
        r4 = true
        @index += match_len
      else
        terminal_parse_failure('"("')
        r4 = nil
      end
      s3 << r4
      if r4
        r5 = _nt_boolean_expression
        s3 << r5
        if r5
          if (match_len = has_terminal?(")", false, index))
            r6 = true
            @index += match_len
          else
            terminal_parse_failure('")"')
            r6 = nil
          end
          s3 << r6
        end
      end
      if s3.last
        r3 = instantiate_node(BooleanExpression,input, i3...index, s3)
        r3.extend(NegatedTest0)
      else
        @index = i3
        r3 = nil
      end
      if r3
        r3 = SyntaxNode.new(input, (index-1)...index) if r3 == true
        r0 = r3
      else
        @index = i0
        r0 = nil
      end
    end
  end

  node_cache[:negated_test][start_index] = r0

  r0
end

#_nt_negativeObject


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# File 'lib/procedo/formula/language.rb', line 2883

def _nt_negative
  start_index = index
  if node_cache[:negative].has_key?(index)
    cached = node_cache[:negative][index]
    if cached
      node_cache[:negative][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0, s0 = index, []
  if (match_len = has_terminal?("!", false, index))
    r1 = true
    @index += match_len
  else
    terminal_parse_failure('"!"')
    r1 = nil
  end
  s0 << r1
  if r1
    r2 = _nt_negated_test
    s0 << r2
  end
  if s0.last
    r0 = instantiate_node(NegativeTest,input, i0...index, s0)
    r0.extend(Negative0)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:negative][start_index] = r0

  r0
end

#_nt_numericObject


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# File 'lib/procedo/formula/language.rb', line 1279

def _nt_numeric
  start_index = index
  if node_cache[:numeric].has_key?(index)
    cached = node_cache[:numeric][index]
    if cached
      node_cache[:numeric][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0, s0 = index, []
  i1 = index
  i2, s2 = index, []
  if has_terminal?(@regexps[gr = '\A[1-9]'] ||= Regexp.new(gr), :regexp, index)
    r3 = true
    @index += 1
  else
    terminal_parse_failure('[1-9]')
    r3 = nil
  end
  s2 << r3
  if r3
    s4, i4 = [], index
    loop do
      if has_terminal?(@regexps[gr = '\A[0-9]'] ||= Regexp.new(gr), :regexp, index)
        r5 = true
        @index += 1
      else
        terminal_parse_failure('[0-9]')
        r5 = nil
      end
      if r5
        s4 << r5
      else
        break
      end
    end
    r4 = instantiate_node(SyntaxNode,input, i4...index, s4)
    s2 << r4
  end
  if s2.last
    r2 = instantiate_node(SyntaxNode,input, i2...index, s2)
    r2.extend(Numeric0)
  else
    @index = i2
    r2 = nil
  end
  if r2
    r2 = SyntaxNode.new(input, (index-1)...index) if r2 == true
    r1 = r2
  else
    if (match_len = has_terminal?("0", false, index))
      r6 = true
      @index += match_len
    else
      terminal_parse_failure('"0"')
      r6 = nil
    end
    if r6
      r6 = SyntaxNode.new(input, (index-1)...index) if r6 == true
      r1 = r6
    else
      @index = i1
      r1 = nil
    end
  end
  s0 << r1
  if r1
    i8, s8 = index, []
    if (match_len = has_terminal?(".", false, index))
      r9 = true
      @index += match_len
    else
      terminal_parse_failure('"."')
      r9 = nil
    end
    s8 << r9
    if r9
      s10, i10 = [], index
      loop do
        if has_terminal?(@regexps[gr = '\A[0-9]'] ||= Regexp.new(gr), :regexp, index)
          r11 = true
          @index += 1
        else
          terminal_parse_failure('[0-9]')
          r11 = nil
        end
        if r11
          s10 << r11
        else
          break
        end
      end
      if s10.empty?
        @index = i10
        r10 = nil
      else
        r10 = instantiate_node(SyntaxNode,input, i10...index, s10)
      end
      s8 << r10
    end
    if s8.last
      r8 = instantiate_node(SyntaxNode,input, i8...index, s8)
      r8.extend(Numeric1)
    else
      @index = i8
      r8 = nil
    end
    if r8
      r7 = r8
    else
      r7 = instantiate_node(SyntaxNode,input, index...index)
    end
    s0 << r7
  end
  if s0.last
    r0 = instantiate_node(Numeric,input, i0...index, s0)
    r0.extend(Numeric2)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:numeric][start_index] = r0

  r0
end

#_nt_objectObject


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# File 'lib/procedo/formula/language.rb', line 602

def _nt_object
  start_index = index
  if node_cache[:object].has_key?(index)
    cached = node_cache[:object][index]
    if cached
      node_cache[:object][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0 = index
  r1 = _nt_function_call
  if r1
    r1 = SyntaxNode.new(input, (index-1)...index) if r1 == true
    r0 = r1
  else
    r2 = _nt_environment_variable
    if r2
      r2 = SyntaxNode.new(input, (index-1)...index) if r2 == true
      r0 = r2
    else
      @index = i0
      r0 = nil
    end
  end

  node_cache[:object][start_index] = r0

  r0
end

#_nt_presenceObject


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# File 'lib/procedo/formula/language.rb', line 2687

def _nt_presence
  start_index = index
  if node_cache[:presence].has_key?(index)
    cached = node_cache[:presence][index]
    if cached
      node_cache[:presence][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0 = index
  i1, s1 = index, []
  r2 = _nt_object
  s1 << r2
  if r2
    if (match_len = has_terminal?("?", false, index))
      r3 = true
      @index += match_len
    else
      terminal_parse_failure('"?"')
      r3 = nil
    end
    s1 << r3
  end
  if s1.last
    r1 = instantiate_node(ActorPresenceTest,input, i1...index, s1)
    r1.extend(Presence0)
  else
    @index = i1
    r1 = nil
  end
  if r1
    r1 = SyntaxNode.new(input, (index-1)...index) if r1 == true
    r0 = r1
  else
    i4, s4 = index, []
    r5 = _nt_variable
    s4 << r5
    if r5
      if (match_len = has_terminal?("?", false, index))
        r6 = true
        @index += match_len
      else
        terminal_parse_failure('"?"')
        r6 = nil
      end
      s4 << r6
    end
    if s4.last
      r4 = instantiate_node(VariablePresenceTest,input, i4...index, s4)
      r4.extend(Presence1)
    else
      @index = i4
      r4 = nil
    end
    if r4
      r4 = SyntaxNode.new(input, (index-1)...index) if r4 == true
      r0 = r4
    else
      @index = i0
      r0 = nil
    end
  end

  node_cache[:presence][start_index] = r0

  r0
end

#_nt_primaryObject


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# File 'lib/procedo/formula/language.rb', line 455

def _nt_primary
  start_index = index
  if node_cache[:primary].has_key?(index)
    cached = node_cache[:primary][index]
    if cached
      node_cache[:primary][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0 = index
  r1 = _nt_numeric
  if r1
    r1 = SyntaxNode.new(input, (index-1)...index) if r1 == true
    r0 = r1
  else
    r2 = _nt_reading
    if r2
      r2 = SyntaxNode.new(input, (index-1)...index) if r2 == true
      r0 = r2
    else
      r3 = _nt_object
      if r3
        r3 = SyntaxNode.new(input, (index-1)...index) if r3 == true
        r0 = r3
      else
        i4, s4 = index, []
        if (match_len = has_terminal?("(", false, index))
          r5 = true
          @index += match_len
        else
          terminal_parse_failure('"("')
          r5 = nil
        end
        s4 << r5
        if r5
          r7 = _nt_space
          if r7
            r6 = r7
          else
            r6 = instantiate_node(SyntaxNode,input, index...index)
          end
          s4 << r6
          if r6
            r8 = _nt_expression
            s4 << r8
            if r8
              r10 = _nt_space
              if r10
                r9 = r10
              else
                r9 = instantiate_node(SyntaxNode,input, index...index)
              end
              s4 << r9
              if r9
                if (match_len = has_terminal?(")", false, index))
                  r11 = true
                  @index += match_len
                else
                  terminal_parse_failure('")"')
                  r11 = nil
                end
                s4 << r11
              end
            end
          end
        end
        if s4.last
          r4 = instantiate_node(Expression,input, i4...index, s4)
          r4.extend(Primary0)
        else
          @index = i4
          r4 = nil
        end
        if r4
          r4 = SyntaxNode.new(input, (index-1)...index) if r4 == true
          r0 = r4
        else
          @index = i0
          r0 = nil
        end
      end
    end
  end

  node_cache[:primary][start_index] = r0

  r0
end

#_nt_readingObject


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# File 'lib/procedo/formula/language.rb', line 676

def _nt_reading
  start_index = index
  if node_cache[:reading].has_key?(index)
    cached = node_cache[:reading][index]
    if cached
      node_cache[:reading][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0 = index
  i1, s1 = index, []
  r2 = _nt_object
  s1 << r2
  if r2
    if (match_len = has_terminal?("..", false, index))
      r3 = instantiate_node(SyntaxNode,input, index...(index + match_len))
      @index += match_len
    else
      terminal_parse_failure('".."')
      r3 = nil
    end
    s1 << r3
    if r3
      r4 = _nt_indicator
      s1 << r4
      if r4
        i6, s6 = index, []
        if (match_len = has_terminal?("(", false, index))
          r7 = true
          @index += match_len
        else
          terminal_parse_failure('"("')
          r7 = nil
        end
        s6 << r7
        if r7
          r8 = _nt_unit
          s6 << r8
          if r8
            if (match_len = has_terminal?(")", false, index))
              r9 = true
              @index += match_len
            else
              terminal_parse_failure('")"')
              r9 = nil
            end
            s6 << r9
          end
        end
        if s6.last
          r6 = instantiate_node(SyntaxNode,input, i6...index, s6)
          r6.extend(Reading0)
        else
          @index = i6
          r6 = nil
        end
        if r6
          r5 = r6
        else
          r5 = instantiate_node(SyntaxNode,input, index...index)
        end
        s1 << r5
      end
    end
  end
  if s1.last
    r1 = instantiate_node(IndividualReading,input, i1...index, s1)
    r1.extend(Reading1)
  else
    @index = i1
    r1 = nil
  end
  if r1
    r1 = SyntaxNode.new(input, (index-1)...index) if r1 == true
    r0 = r1
  else
    i10, s10 = index, []
    r11 = _nt_object
    s10 << r11
    if r11
      if (match_len = has_terminal?(".", false, index))
        r12 = true
        @index += match_len
      else
        terminal_parse_failure('"."')
        r12 = nil
      end
      s10 << r12
      if r12
        r13 = _nt_indicator
        s10 << r13
        if r13
          i15, s15 = index, []
          if (match_len = has_terminal?("(", false, index))
            r16 = true
            @index += match_len
          else
            terminal_parse_failure('"("')
            r16 = nil
          end
          s15 << r16
          if r16
            r17 = _nt_unit
            s15 << r17
            if r17
              if (match_len = has_terminal?(")", false, index))
                r18 = true
                @index += match_len
              else
                terminal_parse_failure('")"')
                r18 = nil
              end
              s15 << r18
            end
          end
          if s15.last
            r15 = instantiate_node(SyntaxNode,input, i15...index, s15)
            r15.extend(Reading2)
          else
            @index = i15
            r15 = nil
          end
          if r15
            r14 = r15
          else
            r14 = instantiate_node(SyntaxNode,input, index...index)
          end
          s10 << r14
        end
      end
    end
    if s10.last
      r10 = instantiate_node(WholeReading,input, i10...index, s10)
      r10.extend(Reading3)
    else
      @index = i10
      r10 = nil
    end
    if r10
      r10 = SyntaxNode.new(input, (index-1)...index) if r10 == true
      r0 = r10
    else
      @index = i0
      r0 = nil
    end
  end

  node_cache[:reading][start_index] = r0

  r0
end

#_nt_spaceObject


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# File 'lib/procedo/formula/language.rb', line 1798

def _nt_space
  start_index = index
  if node_cache[:space].has_key?(index)
    cached = node_cache[:space][index]
    if cached
      node_cache[:space][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  s0, i0 = [], index
  loop do
    if has_terminal?(@regexps[gr = '\A[\\s\\n]'] ||= Regexp.new(gr), :regexp, index)
      r1 = true
      @index += 1
    else
      terminal_parse_failure('[\\s\\n]')
      r1 = nil
    end
    if r1
      s0 << r1
    else
      break
    end
  end
  if s0.empty?
    @index = i0
    r0 = nil
  else
    r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
  end

  node_cache[:space][start_index] = r0

  r0
end

#_nt_symbolObject


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# File 'lib/procedo/formula/language.rb', line 1414

def _nt_symbol
  start_index = index
  if node_cache[:symbol].has_key?(index)
    cached = node_cache[:symbol][index]
    if cached
      node_cache[:symbol][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0, s0 = index, []
  if (match_len = has_terminal?(":", false, index))
    r1 = true
    @index += match_len
  else
    terminal_parse_failure('":"')
    r1 = nil
  end
  s0 << r1
  if r1
    if has_terminal?(@regexps[gr = '\A[a-z]'] ||= Regexp.new(gr), :regexp, index)
      r2 = true
      @index += 1
    else
      terminal_parse_failure('[a-z]')
      r2 = nil
    end
    s0 << r2
    if r2
      s3, i3 = [], index
      loop do
        if has_terminal?(@regexps[gr = '\A[a-z0-9]'] ||= Regexp.new(gr), :regexp, index)
          r4 = true
          @index += 1
        else
          terminal_parse_failure('[a-z0-9]')
          r4 = nil
        end
        if r4
          s3 << r4
        else
          break
        end
      end
      r3 = instantiate_node(SyntaxNode,input, i3...index, s3)
      s0 << r3
      if r3
        s5, i5 = [], index
        loop do
          i6, s6 = index, []
          if (match_len = has_terminal?("_", false, index))
            r7 = true
            @index += match_len
          else
            terminal_parse_failure('"_"')
            r7 = nil
          end
          s6 << r7
          if r7
            s8, i8 = [], index
            loop do
              if has_terminal?(@regexps[gr = '\A[a-z0-9]'] ||= Regexp.new(gr), :regexp, index)
                r9 = true
                @index += 1
              else
                terminal_parse_failure('[a-z0-9]')
                r9 = nil
              end
              if r9
                s8 << r9
              else
                break
              end
            end
            if s8.empty?
              @index = i8
              r8 = nil
            else
              r8 = instantiate_node(SyntaxNode,input, i8...index, s8)
            end
            s6 << r8
          end
          if s6.last
            r6 = instantiate_node(SyntaxNode,input, i6...index, s6)
            r6.extend(Symbol0)
          else
            @index = i6
            r6 = nil
          end
          if r6
            s5 << r6
          else
            break
          end
        end
        r5 = instantiate_node(SyntaxNode,input, i5...index, s5)
        s0 << r5
      end
    end
  end
  if s0.last
    r0 = instantiate_node(Symbol,input, i0...index, s0)
    r0.extend(Symbol1)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:symbol][start_index] = r0

  r0
end

#_nt_testObject


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# File 'lib/procedo/formula/language.rb', line 2208

def _nt_test
  start_index = index
  if node_cache[:test].has_key?(index)
    cached = node_cache[:test][index]
    if cached
      node_cache[:test][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0 = index
  r1 = _nt_negative
  if r1
    r1 = SyntaxNode.new(input, (index-1)...index) if r1 == true
    r0 = r1
  else
    r2 = _nt_comparative
    if r2
      r2 = SyntaxNode.new(input, (index-1)...index) if r2 == true
      r0 = r2
    else
      r3 = _nt_indicative
      if r3
        r3 = SyntaxNode.new(input, (index-1)...index) if r3 == true
        r0 = r3
      else
        r4 = _nt_presence
        if r4
          r4 = SyntaxNode.new(input, (index-1)...index) if r4 == true
          r0 = r4
        else
          i5, s5 = index, []
          if (match_len = has_terminal?("(", false, index))
            r6 = true
            @index += match_len
          else
            terminal_parse_failure('"("')
            r6 = nil
          end
          s5 << r6
          if r6
            r7 = _nt_boolean_expression
            s5 << r7
            if r7
              if (match_len = has_terminal?(")", false, index))
                r8 = true
                @index += match_len
              else
                terminal_parse_failure('")"')
                r8 = nil
              end
              s5 << r8
            end
          end
          if s5.last
            r5 = instantiate_node(BooleanExpression,input, i5...index, s5)
            r5.extend(Test0)
          else
            @index = i5
            r5 = nil
          end
          if r5
            r5 = SyntaxNode.new(input, (index-1)...index) if r5 == true
            r0 = r5
          else
            @index = i0
            r0 = nil
          end
        end
      end
    end
  end

  node_cache[:test][start_index] = r0

  r0
end

#_nt_unitObject


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# File 'lib/procedo/formula/language.rb', line 1166

def _nt_unit
  start_index = index
  if node_cache[:unit].has_key?(index)
    cached = node_cache[:unit][index]
    if cached
      node_cache[:unit][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0, s0 = index, []
  if has_terminal?(@regexps[gr = '\A[a-z]'] ||= Regexp.new(gr), :regexp, index)
    r1 = true
    @index += 1
  else
    terminal_parse_failure('[a-z]')
    r1 = nil
  end
  s0 << r1
  if r1
    s2, i2 = [], index
    loop do
      if has_terminal?(@regexps[gr = '\A[a-z0-9]'] ||= Regexp.new(gr), :regexp, index)
        r3 = true
        @index += 1
      else
        terminal_parse_failure('[a-z0-9]')
        r3 = nil
      end
      if r3
        s2 << r3
      else
        break
      end
    end
    r2 = instantiate_node(SyntaxNode,input, i2...index, s2)
    s0 << r2
    if r2
      s4, i4 = [], index
      loop do
        i5, s5 = index, []
        if (match_len = has_terminal?("_", false, index))
          r6 = true
          @index += match_len
        else
          terminal_parse_failure('"_"')
          r6 = nil
        end
        s5 << r6
        if r6
          s7, i7 = [], index
          loop do
            if has_terminal?(@regexps[gr = '\A[a-z0-9]'] ||= Regexp.new(gr), :regexp, index)
              r8 = true
              @index += 1
            else
              terminal_parse_failure('[a-z0-9]')
              r8 = nil
            end
            if r8
              s7 << r8
            else
              break
            end
          end
          if s7.empty?
            @index = i7
            r7 = nil
          else
            r7 = instantiate_node(SyntaxNode,input, i7...index, s7)
          end
          s5 << r7
        end
        if s5.last
          r5 = instantiate_node(SyntaxNode,input, i5...index, s5)
          r5.extend(Unit0)
        else
          @index = i5
          r5 = nil
        end
        if r5
          s4 << r5
        else
          break
        end
      end
      r4 = instantiate_node(SyntaxNode,input, i4...index, s4)
      s0 << r4
    end
  end
  if s0.last
    r0 = instantiate_node(Unit,input, i0...index, s0)
    r0.extend(Unit1)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:unit][start_index] = r0

  r0
end

#_nt_variableObject


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# File 'lib/procedo/formula/language.rb', line 946

def _nt_variable
  start_index = index
  if node_cache[:variable].has_key?(index)
    cached = node_cache[:variable][index]
    if cached
      node_cache[:variable][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
      @index = cached.interval.end
    end
    return cached
  end

  i0, s0 = index, []
  if has_terminal?(@regexps[gr = '\A[a-z]'] ||= Regexp.new(gr), :regexp, index)
    r1 = true
    @index += 1
  else
    terminal_parse_failure('[a-z]')
    r1 = nil
  end
  s0 << r1
  if r1
    s2, i2 = [], index
    loop do
      if has_terminal?(@regexps[gr = '\A[a-z0-9]'] ||= Regexp.new(gr), :regexp, index)
        r3 = true
        @index += 1
      else
        terminal_parse_failure('[a-z0-9]')
        r3 = nil
      end
      if r3
        s2 << r3
      else
        break
      end
    end
    r2 = instantiate_node(SyntaxNode,input, i2...index, s2)
    s0 << r2
    if r2
      s4, i4 = [], index
      loop do
        i5, s5 = index, []
        if (match_len = has_terminal?("_", false, index))
          r6 = true
          @index += match_len
        else
          terminal_parse_failure('"_"')
          r6 = nil
        end
        s5 << r6
        if r6
          s7, i7 = [], index
          loop do
            if has_terminal?(@regexps[gr = '\A[a-z0-9]'] ||= Regexp.new(gr), :regexp, index)
              r8 = true
              @index += 1
            else
              terminal_parse_failure('[a-z0-9]')
              r8 = nil
            end
            if r8
              s7 << r8
            else
              break
            end
          end
          if s7.empty?
            @index = i7
            r7 = nil
          else
            r7 = instantiate_node(SyntaxNode,input, i7...index, s7)
          end
          s5 << r7
        end
        if s5.last
          r5 = instantiate_node(SyntaxNode,input, i5...index, s5)
          r5.extend(Variable0)
        else
          @index = i5
          r5 = nil
        end
        if r5
          s4 << r5
        else
          break
        end
      end
      r4 = instantiate_node(SyntaxNode,input, i4...index, s4)
      s0 << r4
    end
  end
  if s0.last
    r0 = instantiate_node(Variable,input, i0...index, s0)
    r0.extend(Variable1)
  else
    @index = i0
    r0 = nil
  end

  node_cache[:variable][start_index] = r0

  r0
end

#rootObject


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# File 'lib/procedo/formula/language.rb', line 9

def root
  @root ||= :expression
end